taxes Property Tax Assistance

2019 Confidence Interval Detail

Brewster County
022-901/Alpine ISD

Category Summary

(1)
Category 		(1)
Local
Value 		(1)
Stratum
Ratio 		(1)
State
Value 		(2)
Sample
Size 		(3)
Total
Parcels
Stratum
Variance
A 91,120,528 0.6816 133,686,221 19 1053 0.082164052
A 96,145,441 0.8557 112,358,819 30 611 0.038549959
A 83,660,639 0.8903 93,969,043 17 382 0.011221626
A 94,966,469 0.9893 95,993,601 17 287 0.014679557
E 54,225,591 0.6831 79,381,629 13 6247 0.064499472
F1 21,820,161 0.9733 22,418,741 9 146 0.016541139
F1 20,245,397 0.9724 20,820,030 9 43 0.010944888
F1 19,726,616 0.8433 23,392,169 7 13 0.019179996
F1 16,968,598 1.0056 16,874,181 4 5 0.023788133
L1 7,487,558 1.0292 7,275,124 9 98 0.016084294
L1 7,491,770 0.9905 7,563,624 7 22 0.015409139
L1 6,672,320 1.0083 6,617,396 4 7 0.006858617
L1 20,235,698 1.1526 17,556,566 1 3 0.000000000
Random Totals: 540,766,786 637,907,144 146 8,917
CATG D1 EXCEPTION VALUES: 14,769,482 18,599,317
CATG J EXCEPTION VALUES: 46,557,340 46,458,090
Total Test Values(2) 602,093,608 702,964,551

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 35,148,228

Confidence Interval Values(5)

Local Test Value: 602,093,608 OUTSIDE CONFIDENCE INTERVAL
State Lower Limit: 667,816,323 (State Test Value minus Margin of Error Percent)
State Upper Limit: 738,112,779 (State Test Value plus Margin of Error Percent)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D2, E, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values